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Merit Brass is committed to partnering with vendors who share our commitment to providing consistent, high-quality valves which are vital to the pipeline's sustainability.  As you know, piping systems rely on quality connections that serve the needs of the application and valves play a key role in throttling the flow of any system.   

Merit's CopperPress® Valve Tank Installation


What is a Valve?

Valves are devices that control, regulate, or direct flow of liquids and gas within various systems.  A valve helps manage the pipeline by opening, closing, or partially blocking the flow Valves come in many forms to fit the needs throughout several industry applications including commercial and residential plumbing, water and wastewater treatment, pharmaceutical, power generation, oil and gas, and so much more.  It’s important to understand that the valve you choose impacts the overall performance within the applicationThis includes how much control you have over the flow and how the valve operates.

Two of the most common types of valve openings include quarter turn valve and multi-turn valves.  Quarter-turn valves fully open or close with a 90-degree turnMulti-turn valves open or close by turning the valve handle or hand wheel; these valves must be turned multiple times to fully open or close.

Furthermore, it’s important to understand the different types of valves and their functions to help determine which will be the most ideal for your application.  Some of the most common types of valves include:  ball (full port, standard port, reduced port), gate, check (including swing check and y-pattern swing check), butterfly, globe, pressure relief and instrumentation.  The most commonly used is the gate valve.



For ball valves, the type of port the valve has determines the flow throughout the systemThere are 3 common types:  standard port, reduced port and full port.   

  • Full Port – the valve has an oversized ball so the hole in the port is the same as the inner diameter (ID) of the pipeline; there is 100% flow through the pipeline.  

  • Standard Port – the valve has a smaller port than the ID of the pipeline; there is about 75% of flow through the pipeline.  

  • Reduced Port – the valve has an even smaller port than the ID of the pipeline; there is about 65% of flow through the pipeline. 


Another feature in valves to consider is the valve’s end connection.  The valve end connection must be compatible with your piping system.  Some of the most common types of valve end connections include:

    • Threaded End Connections are threaded onto the pipe providing a streamlined connection.  This type of valve end connection typically has female threaded ends that fit onto the male threaded pipe ends.
    • Flanged End Connections are bolted onto the pipe with pipe flanges.  The type of flange used will vary depending on the application and the industry standard required for the application.
    • Socket Weld and Butt Weld End Connections are both welded onto the pipe.  Socket weld end connections have an ID that is slightly larger than the pipe’s OD.  When the pipe is inserted into the valve end, the pipe is welded around the end connections.  Butt weld end connections and the pipe have equal diameters and the outside edge of the valve and pipe are filled with a welding material.
    • Press End Connections use a press tool, jaws and where applicable, rings to press-connect the joints together.   This type of connections does not require soldering, brazing, threading or welding.  Press end connections are available in 3 types of profiles:  V profile,  M profile, and Grab-Ring.  Please note that all 3 Profiles can be used with Copper Tube Size (CTS) or Iron Pipe Size (IPS), please refer to the Press Fitting/Valve being used for the correct joint.


At Merit Brass, our valves are available in several alloysStainless steel, brass and copperOur stainless steel valves are corrosion resistantWe carry several types of valves in stainless steel including our "K" Series, "V" Series, Instrumentation and our engineered solution, StainlessPress®. 



Our brass valve offering is comprised of ball valves.  Merit carries both leaded and lead-free.  Lead-free can serve your potable water applications.   

Merit's Brass Ball Valve Offering Includes:  Merit's Brass Ball Valve Offering (Leaded & Lead Free)


Benefits of Brass Valves

  • Excellent Corrosion Resistance to Water and Heat 

  • Resists Attack from Salt Water, Acid, Minerals, and Peaty Soils Contained in Water 

  • 600PSI Non-Shock WOG 125 PSI SWP Rating 

  • Conforms to MSS-SP-110 

  • Threaded Ends ANSI B1.20.1 

  • CSA Gas Approved for Valves up to 2” (IPS only) 

  • Lead free is compliant to NSF61 and suitable for potable water applications

  • Lead free 2-½” - 4” is UL/FM Approved 

Stainless Steel  

  • “K” Series – China   Merit Stainless K Series Valve Offering

    • Ball valves:  1PC, 2PC, 3PC
    • Threaded, socket weld & flanged end
    • Standard, full and reduced ports

    • Repair kits
  • “V” Series – Taiwan Merit's V Series Stainless Valve Offering
    • Ball in 1PC, 2PC and 3PC 
    • Swing check & wye pattern swing check 
    • Y-strainers 

    • Gate valves 

    • Threaded, socket weld  

    • Standard, full  

    • Repair kits
  • Instrumentation Merit Tube Valve Offering

    • FNPT and MNPT available 
    • Vee-Stem, Regulating Needle 

    • Tube Ball full port and 3-way 

    • Ball valve IPS (Iron Pipe Size) 1/2" - 2"
    • Available in EPDM & HNBR sealing elements
    • Easy & quick installation without need for soldering or threading
    • Full port
    • 5-Year limited warranty
    • Patented VIPR® band (VIsual Indicator Press Ring®) facilitates immediate identification of unpressed connections
    • Mates with Merit's stainless steel schedule 10 pipe

Benefits of Stainless Steel Valves

  • Corrosion resistant
  • Prevents contamination of the product from small particles, rust and scale
  • Excellent strength
  • Durability
  • Ducticlity
  • Retains lustrous appearance over a long period of time



Merit's CopperPress®  valves come with a 5-year limited warranty.  The CopperPress® valve is designed to be used with ASTM B88 Type K, L and M copper tubing.  

  • 2-Piece Ball Valve: ½” – 2” 

  • EPDM sealing element


Benefits of CopperPress® ValvesMerit CopperPress® EPDM Valve

  • Patented VIPR® Band (Visual Indicator Press Ring®) facilitates immediate identification of unpressed connections

  • Maximum working pressure:  300 psi

  • Leak Before Press (LBP) System

    • 1/2" has 3-path LBP and 3/4" - 2" have a 4-path LBP
  • 5-Year limited warranty
  • Cast C89836 Bronze body with copper retainers
  • Easy & quick installation without need for soldering or threading
  • Suitable for installation in most plumbing & heating systems including hydronic heating, low pressure steam (15 psi max), and potable water
  • Corrosion resistant
  • Cost-effective due to long-term cost savings due to ease of installation, durability and leak-free performance
  • Copper Ends protect against dezinctification and stress corrosion cracking
  • Reduced fire risk since no open flame is required at installation 


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